Watch-regulator



(No Model.)

G..R.BLAKE.

WATCH REGULATOR.

PatentedOct. 2

INVENTOR ar/w M 7M ATTORNEYS WITNESSES r. Wammglon. a. c.

UNITED STATES PATENT OFFICE.

CHARLES It. BLAKE, OF FRANKFORT, INDIANA.

WATCH-REGULATOR.

SPECIFICATION forming part of Letters Patent No. 285,959, dated October 2, 1883.

Application tiled January 26, 1883. (N0 model.)

To all whom it may concern.-

Be it known that I, CHARLES R. BLAKE, a citizen of the United States, residing at Frankfort, in the county of Clinton and State of Indiana, have invented certain new and useful Improvements in \VatclrRegulators; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertaius to make and use the same, reference being had to the accompanying drawings, and to letters or figures of reference marked thereon. which form a part of this specification.

Figure 1 of the drawings is a representation of this invention applied to a watch, and shows a top view. Fig. 2 is a side view. Fig. 3 is a top view. i is a crosssect-ion. Fig. 5is a perspective view. Fig. 6 is a modification in perspective. Fig. 7 is a side View of the same.

This invention has relation to watch-regulators; and it consists in the construction and novel arrangement, in connection with a common regulator-arm for a watch, of an attachment for the hair-spring, made adjustable on the regulator-arm, whereby the hair-spring may be prevented from jumping the pins, and thus causing the time action of the watch to be reliable, as will be hereinafter more fully described and particularly claimed.

I have-found in my experience as a watch maker and jeweler that the owners of watches brought to me for repairs have complained that their watches gain or lose from two to four hours per diem. Upon examination of the watches I have found the cause to be that the hair-spring had jumped the pins, and hence either accelerated or retarded the movement. To remedy this defectI have constructed the attachment hereinbefore alluded to and hereinafter more minutely described.

Referring by letter to the accompanying drawings, a designates the regulatorarm, which varies in size in different watches.

I) b designate the regulating-pins for the hair-spring.

c designates the adjustable or sliding hairspring guard, which is constructed of steel or othersuitable metal, and which is constructed in dimensions to suit the regulator-arm to which it is to be applied. This attachment is provided in one side with a slit, (1, and is curved in at the bottom to furnish spring-action to cause the attachment to clamp the regulatorarm when adjusted to place. The slide is open on its lower side to permit the regulatorpins to pass down, and its longer side 6 is provided with a slot or notch, f, opening toward the pins, through which one coil only of the hair-spring may pass, but is sawed back far enough to permit it to spring to admit hair-springs of different sizes. This slide, when pushed to place 011 the regulator-arm, will prevent the hair-spring from jumping the regulatorpins, and will consequently render the timekeeper more reliable. motion can throw the coils of the hair-spring over the regulator-pins when this device is used.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is

In a watchregulator, the combination, with the regulator-arm carrying the regulatingpins, of the sliding attachment provided with the clamp-slit and the notch or slot for engaging the coil of the hair-spring, substantially as specified.

In testimony whereof I aflix my signature in presence of two witnesses.

CHARLES R. BLAKE. \Vitnesses:

JAMES W. MoREIsoN, WILLIAM KEMP. 

